Free Online Calculators

Plan your household budgets, income taxes, and salary expectations accurately. Calculate monthly housing payments, principal breakdowns, and interest schedules using our mortgage calculator (Mortgage Calculator). To estimate your take-home pay by state, use our paycheck calculator (Paycheck Calculator), which includes state tax for 10 states, or the dedicated New York Paycheck Calculator. For business billing, draft clean client billing documents with our Invoice Generator.

During academic evaluation and competitive exam application seasons, students and job candidates require fast, error-free scoring metrics. Compute cumulative semester grade point averages with our GPA calculator (GPA Calculator) or translate university marks using our CGPA to percentage converter (Percentage to CGPA Converter). For general proportions, launch the percentage calculator feature. If you are preparing government and competitive recruitment forms, check UPSC, SSC, IBPS, and bank recruitment cutoff dates using our exam age limit calculator (Exam Age Limit Calculator).

For supported mathematical functions, open the Scientific Calculator in your browser. Check the available keys and verify important results independently; it is not a replacement for every function or exam approval of a physical calculator.

Unlike standard web rulers that assume a generic, inaccurate 96-DPI display, ToolJiffy features an online ruler actual size tool (Online Ruler). It offers 4 precise screen calibration methods — including credit card dimensions, bank card width, paper sizes, and manual PPI adjustment. Measure physical objects against your monitor or smartphone screen in exact centimeters, millimeters, and fractional inches with true 1:1 physical scale precision.